94 lines
2.3 KiB
Nix
94 lines
2.3 KiB
Nix
{ config, lib, pkgs, utils, ... }:
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with lib;
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let
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cfg = config.services.unifi;
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stateDir = "/var/lib/unifi";
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cmd = "@${pkgs.jre}/bin/java java -jar ${stateDir}/lib/ace.jar";
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mountPoints = [
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{
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what = "${pkgs.unifi}/dl";
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where = "${stateDir}/dl";
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}
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{
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what = "${pkgs.unifi}/lib";
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where = "${stateDir}/lib";
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}
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{
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what = "${pkgs.mongodb}/bin";
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where = "${stateDir}/bin";
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}
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];
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systemdMountPoints = map (m: "${utils.escapeSystemdPath m.where}.mount") mountPoints;
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in
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{
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options = {
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services.unifi.enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether or not to enable the unifi controller service.
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'';
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};
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};
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config = mkIf cfg.enable {
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users.extraUsers.unifi = {
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uid = config.ids.uids.unifi;
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description = "UniFi controller daemon user";
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home = "${stateDir}";
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};
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# We must create the binary directories as bind mounts instead of symlinks
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# This is because the controller resolves all symlinks to absolute paths
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# to be used as the working directory.
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systemd.mounts = map ({ what, where }: {
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bindsTo = [ "unifi.service" ];
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partOf = [ "unifi.service" ];
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unitConfig.RequiresMountsFor = stateDir;
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options = "bind";
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what = what;
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where = where;
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}) mountPoints;
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systemd.services.unifi = {
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description = "UniFi controller daemon";
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wantedBy = [ "multi-user.target" ];
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after = [ "network.target" ] ++ systemdMountPoints;
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partOf = systemdMountPoints;
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bindsTo = systemdMountPoints;
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unitConfig.RequiresMountsFor = stateDir;
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preStart = ''
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# Ensure privacy of state
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chown unifi "${stateDir}"
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chmod 0700 "${stateDir}"
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# Create the volatile webapps
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rm -rf "${stateDir}/webapps"
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mkdir -p "${stateDir}/webapps"
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chown unifi "${stateDir}/webapps"
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ln -s "${pkgs.unifi}/webapps/ROOT" "${stateDir}/webapps/ROOT"
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'';
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postStop = ''
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rm -rf "${stateDir}/webapps"
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'';
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serviceConfig = {
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Type = "simple";
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ExecStart = "${cmd} start";
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ExecStop = "${cmd} stop";
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User = "unifi";
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PermissionsStartOnly = true;
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UMask = "0077";
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WorkingDirectory = "${stateDir}";
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};
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};
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};
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}
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